Valve mechanism for gas-retorts.



H. A. CARPENTER. VALVE MECHANISM FOR GAS' RETORTS.

APPLICATION mm OCT. 29; 1914.

mwlm.

Patented Dee. 28, i915.

WITNESSES iin rr snares a rnnr MANUFACTURING COMPANY. OF PITTSBURGH,PENNSYLVANIA, A CORPORATIGN OF NEW JERSEY.

VALVE MECHANISM FOR GAS-BETORTS.

Specification of Letters Patent.

Patented Dee i915.

Continuation of application Serial No. 780,89 8, filed July 24., 1913.This application filed October 29, 1914; Scria1No.869,231.

To all whom it may concern Be it known that I, HEXRY A. CARPENTER, acitizen of the United States, residing at Sewickley, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Valve. l\lechanism for Gas-Retorts, of which thefollowing is "a specification.

The present invention relates to improvements in valve mechanism. forgas retorts, being a continuation in part, of that filed by me July 24,1913, Serial Number 780,898,

the present disclosure including certain additional amplifying features.

The general invention disclosed herein and in said parent applicationpertain more particularly to apparatus in which the mouth-pieces areadapted to connect with the stand-pipe, the latter serving as a conduitfor a plurality of separate retorts. In practice, it is desirable thatcommunication between the mouth-piece and stand-pipe be generally open,a closure of such communication being had when it is desirable to openthe mouth-piece lid for any purpose; the

fa result, the seat' for the valve which controls the passage-way tendsto clog up with consequent liability of an imperfect seating of thevalve, and this is especially the case where the valve itself is locateddirectly in the path of travel. of the gas to or through thepassage-Way.

The present invention aims to overcome these objections, together withothers hereinafter indicated, and has for its objects, the provision ofa valve mechanism which is simple and efficient in operation, durable inconstruction, and which will be effective in retaining the valve and itsseat in condition to provide for maximum efficiency of the retortapparatus.

' in connection with a stand-pipe, and provided with valve mechanism,the View showing portions of retort closure means; Fig.

2 is a detail view partly in section showing the passage-way between themouth-piece and the stand-pipe, with the valve in position'therein; Fig.3 is a view similar to Fig. 1 showing the valve in a' different positionand showing. additional means for holding the valve to its seat; Fig. lis a front elevation of parts shown in Fig. 3, and showing differentpositions of the valve; Fig.

5 is an end elevation looking in the direction of the arrow in Fig. 4;and Fig. 6 is a detail sectional view showing additional leakageprevention means, the section being taken on line 66 of Fig. 5. Figs. 1and 2 of the drawings are disclosures of views of the above-identifiedapplication, these views disclosing the general features of the presentapplication, these features being first described.

1 designates a mouth-piece designed to be connected with a stand-pipe 2,the latter being provided with openings 8 adapted to cotiperate withoutlet passages or nozzles 4 of the mouth-piece to form a passage-wayfrom the retort to the stand-pipe. Preferably, the stand-pipe is'adaptedto be located between adjacent rows of mouth-pieces, the latter beingconnected to the stand-pipe on opposite sides. The nozzles are eachprovided with a seat 5 at the outlet to the passage-way, and the nozzleand stand-pipe have complemental faces adapted to engage to provide foran efficient joint connection therebetween.

The communication between the mouth piece and the stand-pipe iscontrolled by means of valve mechanism which is so positioned andarranged that when the passage-way is open, the valve will be spacedtherefrom, and preferably located at a point out of proximity with theoutlet to the passage-way, thereby tending to prevent deposits thereonsuflicient to affect the seating of the valve; in addition, the valvestructure is so formed as to tend to clear the seat as well as the valvefrom such deposits during the seating movement that the actual closingmay provide against material leakage.

A preferred way of producing-the result is shown in the drawings, inwhich the valvestem is in'the form of a bent arm 8, a portion of whichis in the form of a shaft 10 projecting outwardly from the mouth-pieceand having its bearing in a casing 11, the outer end of the shaft 10being preferably shaped, as at 12, to permit a tool, not shown, to beplaced thereon and by means of which the shaft 10 and the arm 8 may beoscillated with the shaft as the axis of oscillation, the shaft axisextending at substantial right angles to the axis of thepassage-way.

As shown in Fig. 1, the inner portion of the arm is bent at an anglewith the shaft, and said arm, as shown in Fig.4, has its inner endadapted to carry the valve 7 with a ball and socket joint connection,the valve 7 being preferablylof the ball 'type. As shown in Fig. 2, thisparticular arrangement is such that the valve 7, in its movements towardand from its seat, describes an 'arcuate path which places the valve,when the passageway. is open for operation, below and to one side of thepassage-way the result being that while the valve itself isJVithin themouth-piece, it is positioned somewhat out of the direct path of the gasinto and through the passage-wayg'and therefore less liable to thedeposit of impurities thereon. As thevalve seat, however, is located inimmediate proximity to such path, it is subjected to such deposits;hence, when the valve is to be closed, it isdesirable to provide foreliminating these deposits as much as possible in order that the valvemay be seated substantially free from leakage; This action is providedby the particular movement of the valve support and the ball and socketconnection of valve 7 and arm 8, this connection being in the nature ofa universal Joint. 3

As will be readily understood, the valve 7 is substantially free to moveon the ball 9 during travel to and from its closing position, the resultbeing that as the valve approaches its seat, any change in position,

made during such movement will be corrected by contact with the seat;Such correction'obviously provides a relative movement between valve andseat and thus dis- I lodges the impurities or otherwise destroysstantiallv free from leakaee.

of the valvepin ordermembers 31 and 31 their ability to prevent accuratefitting of valve and seat so that when the valve becomes actuallyseated, the joint will be sub- In roviding this result, not only is theshape of the support important, but also the shape of the valve itself,the seating facepf the latter eing somewhat spherical, so that as it apeproachesits seat, it will practically fit thereon even"though it is notaccurately positioned on its support, tending to accommodate forvariations in accumulations as it approaches its seating position. Asthe movement, however, continues, this condition is righted by acorrection in the position of the valve, causing a movement of itsseating face in such manner as to tend to remove accumulation byabrasion. Since the valve is loosely mounted, it will be readilyunderstood that the liability of successive position correctionsbringing precisely the same parts of the valve and seat into contact isvery small, so that there is a tendency to a self-cleaning which willretain the valve seat and valve comparatively clear of in connectionwith the use of tension means, presently described, for retaining thevalve in its closed position, such tension means tending to force theposition-changingeffeet.

As shown in Figs. 1 and 2, the shaft 10 is provided with a stop member14: which in the general arrangement of said prior appll cation,cotiperates with the door operating mechanism to prevent movements ofthe latter to open the door prior to the closing of the valve 7.' ,Inthe-amplification of the general invention set forth herein, this memher is given the additional function of positively retaining the valvein its closed position, this being provided by the use of a member 30 haing the general configuration shown in Figs. 3, 4 and 5, this memberbeing secured to the mouth-piece and ha'vin its free end located in thepath of trav l of the toe of the, member 14, such free end being bent ata point where the toe will pass slightly beyond the bending line whenthe valve is seated, the result being that said 115 member 30 willact asa retaining means for the valve to prevent accidental valve opening. Themember 30 may, if desired, be formed of resilient material, thereby placing the closed valve under a tension action. 12

A further amplification is disclosed in Fig. 6, in which the shaft 10 isshown as mounted in a specially designed structure for the purpose ofrendering the joint gas tight. This is provided by employing two 125having opposing faces, complemental on approximately spherical lines,the member 31 being carried by a threaded tubular member 32 mounted inthe mouth-piece, the member 31 being carried 130 iaeaiea by the shaft10. The shaft 10 extends through the tubular member and has itsouter endprovided with holding means which may be in the form of a sleeve 38keyed to the shaft, or which may be the member-'14 and nut 13 of theremaining figures. In either case, an annular abutment is'provided atthe outer end of the member 32 with which'a spring as is adapted tocontact,-the opposite end of the spring contacting with an internalshoulder 32 of the member 32, this arrangement placing the shaft 10under tension in a direction to hold the opposing faces of the members31 and 31 leakage-proof, and still permit of the swinging movements ofthe valve through the oscillation of the shaft 10, the members 31 and31*"- practically forming a universal joint at this point.

As will be seen, the arrangement of parts disclosed herein will providefor maximum efliciency in preventing leakage, the several featurescooperating in this respect. For instance, the forming of the valvesemispherical or ball-shape and mounting it on an arm adapted to swingto and from position through an arc, with a ball and socket mounting,automatically provides for an action which will tend to eliminate theefiect oi the impurities deposit on the valve seat. Another effect is tolocate the valve, in open position, out of the direct path of travel 01'the gas through the passage-way and thereby reduce the liability of theimpurities depositing upon the valve itself. Furthermore, by mountingthe shaft 10 with its axis extending at substantially right angles tothe axis of the passage-way, the general construction is simplified andmanipulation of the valve to provide the swinging movement to and fromclosing position rendered possible with minimum leakage and by the useof ordinary actuating means.

While I have herein shown and described a preferred form ofconstruction, it will be readily understood that variations ormodifications thereof may be required or desired to meet the variousexigencies of use, and I desire to be understood as reserving the rightto make any and all such changes or modifi cations as may be required.to meet such conditions in so far as the same may fall within the spiritand scope of the invention as expressed. in the accompanying claims.

What I claim is 1. The combination with a retort mouthpiece, of astand-pipe in communication therewith, a seat on the mouth-piece, a ballvalve operable in the mouth-piece controlling communication between themouthpiece and stand-pipe, and valve actuating means. Thecombinationwith a retort mouthpiece, of a standpipe in communication therewith, aseat on the mouth-piece, a ball valve operable in the mouth-piececontrol-- ling communication between the mouth-piece and stand-pipe, andvalve actuating means including a universal joint connection.

3. In combination, a stand-pipe, a retort mouth piece communicatingtherewith through a passage-way having'a valve seat, and a valve mountedto-swing toward and from said seat, said swinging movement being on anarc to carry the valve out of the general gas travel path to and throughthe passage-way. Y

4:. In combination, a stand-pipe, a retort' mouth-piece communicatingtherewith through a passage/way having a valve seat, and a valve mountedin said mouth-piece to swing toward and from said. seat.-

5. In combination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passage-way having a valve seat, said valve beingloosely supported, whereby the swinging movement may effect position.changes corrected by the seating action of the valve.

6. In combination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passage-way having a valve seat, a valve movabletoward and from theseat, and supporting means for the valve adapted topermit change in position of the valve on its support under change in.center of gravity, said means bringing the valve to its seat 1n aposition to require valve position correction .by the seat in closingthe passageway. i

7. In combination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passageway having a valve seat, and ,valve mechanismfor controlling said passage-way, said mechanism including a valve, anda support therefor comprising a shaft having its axis at substantiallyright angles to the axis of the passageway, and an arm extendinglaterally from the shaft, the valve being positioned at the end of thearm.

8.- In combination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passage-way having a valve seat, and valve mechanismfor controlling said passage-way, said mechanism including a valve, anda support therefor comprising a shaft having its axis at substantiallyright angles to the axis of the passage-way, and

i an arm extending laterally from the shaft,

the valve being positioned at the end of the arm, the connection ofvalve and arm being in the form of a universal joint.

9. In combination, a stand-pipe, a retort mouthpiece communicatingtherewith through a passage-way having a valve seat, and valve mechanismfor controlling said passage-way, said mechanism including a valve, anda support therefor comprising a shaft having its axis at substantiallyright angles to the axis of the passageway, an

and valve mechanism for controlling said passage-way, said mechanismincluding a valve, and a support therefor comprising a shaft having itsaxis at substantially right angles to the axis of the passage-way, andan arm extending laterally from the shaft, the valve being positioned atthe end of the arm, a bearing for the shaft, and a spring for holdingthe shaft in gas-tight engagement with the bearing.

11. Incombination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passage-way having aivalve seat, and a valve mountedin said mouth-piece to swing toward andfrom said seat, and fixedlypositioned means external ot', the mouth-piece and in the path ofmovement of the valve mechanism for retaining the valve in closedposition.

12. In a combination, a stand-pipe, a retort mouth-piece communicatingtherewith through a passage-way having a valve seat, and a valve mountedin said mouth-piece to swing toward and from said seat, and fixedlypositioned means external of the mouthpiece and in the path of movementof the yieldingly retaining inunication therewith with a valve seat forthe passageway controlling such communication, a valve, and a valvesupport mounted to turn about a horizontal axis for .moving thevalvetoward andv from its seat.

15. In combination, a stand-pipe, a retort mouth piece at one side ofthe stand-pipe and formed with a passageway in communication therewithwith a valve seat for the pas- -sa'geway controlling such communication,a

valve located within the mouth-piece, and a valve support mounted toturn about a horizontal axis located within the mouth-piece for movingthe valve toward and from its seat.

In testimony whereof I atiix my signature in presence of two witnesses.

HENRY A. CARPENTER. Witnesses ADA M. STEELE, M. J. STEELE.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D, 0.

